This again is with my patch that allows scan results to be shared, and I have not seen this on an official kernel. Here is the first warning that I see in the logs. It happens soon after startup, when the interfaces start associating. Nov 15 09:31:45 localhost kernel: ieee80211 phy0: WMM queue=1 aci=2 acm=0 aifs=2 cWmin=7 cWmax=15 txop=94 uapsd=0 Nov 15 09:31:45 localhost kernel: ieee80211 phy0: WMM queue=0 aci=3 acm=0 aifs=2 cWmin=3 cWmax=7 txop=47 uapsd=0 Nov 15 09:31:45 localhost kernel: ADDRCONF(NETDEV_CHANGE): sta28: link becomes ready Nov 15 09:31:49 localhost kernel: ath: Failed to stop TX DMA in 100 msec after killing last frame Nov 15 09:31:49 localhost kernel: ath: Failed to stop TX DMA in 100 msec after killing last frame Nov 15 09:31:49 localhost kernel: ath: Failed to stop TX DMA. Resetting hardware! Nov 15 09:31:49 localhost kernel: ath: Failed to stop TX DMA in 100 msec after killing last frame Nov 15 09:31:49 localhost kernel: ath: Failed to stop TX DMA in 100 msec after killing last frame Nov 15 09:31:49 localhost kernel: ath: Failed to stop TX DMA. Resetting hardware! Nov 15 09:31:49 localhost kernel: ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42000020 Nov 15 09:31:49 localhost kernel: ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020 Nov 15 09:31:49 localhost kernel: ------------[ cut here ]------------ Nov 15 09:31:49 localhost kernel: WARNING: at /home/greearb/git/linux.wireless-testing/drivers/net/wireless/ath/ath9k/recv.c:532 ath_stoprecv+0x90/0x9a [at) Nov 15 09:31:49 localhost kernel: Hardware name: PDSBM Nov 15 09:31:49 localhost kernel: Could not stop RX, we could be confusing the DMA engine when we start RX up Nov 15 09:31:49 localhost kernel: Modules linked in: aes_i586 aes_generic 8021q garp stp llc michael_mic macvlan pktgen fuse nfs lockd fscache nfs_acl auth] Nov 15 09:31:49 localhost kernel: Pid: 4932, comm: wpa_supplicant Tainted: G W 2.6.37-rc1-wl+ #47 Nov 15 09:31:49 localhost kernel: Call Trace: Nov 15 09:31:49 localhost kernel: [<78436f25>] warn_slowpath_common+0x77/0x8c Nov 15 09:31:49 localhost kernel: [<f8a4a106>] ? ath_stoprecv+0x90/0x9a [ath9k] Nov 15 09:31:49 localhost kernel: [<f8a4a106>] ? ath_stoprecv+0x90/0x9a [ath9k] Nov 15 09:31:49 localhost kernel: [<78436fb6>] warn_slowpath_fmt+0x2e/0x30 Nov 15 09:31:49 localhost kernel: [<f8a4a106>] ath_stoprecv+0x90/0x9a [ath9k] Nov 15 09:31:49 localhost kernel: [<f8a490b9>] ath_set_channel+0x94/0x1e8 [ath9k] Nov 15 09:31:49 localhost kernel: [<7845a2e9>] ? mark_held_locks+0x47/0x5f Nov 15 09:31:49 localhost kernel: [<7878e27b>] ? _raw_spin_unlock_irqrestore+0x3c/0x48 Nov 15 09:31:49 localhost kernel: [<f8a49551>] ath9k_config+0x344/0x423 [ath9k] Nov 15 09:31:49 localhost kernel: [<f8682aaa>] ieee80211_hw_config+0x11b/0x125 [mac80211] Nov 15 09:31:49 localhost kernel: [<f8691e36>] ieee80211_set_channel+0x74/0x9e [mac80211] Nov 15 09:31:49 localhost kernel: [<f824aa29>] cfg80211_set_freq+0x92/0xb5 [cfg80211] Nov 15 09:31:49 localhost kernel: [<f8691dc2>] ? ieee80211_set_channel+0x0/0x9e [mac80211] Nov 15 09:31:49 localhost kernel: [<f824cf28>] cfg80211_mgd_wext_siwfreq+0x108/0x148 [cfg80211] Nov 15 09:31:49 localhost kernel: [<f824c2a6>] cfg80211_wext_siwfreq+0x42/0xbf [cfg80211] Nov 15 09:31:49 localhost kernel: [<7876deeb>] ioctl_standard_call+0x52/0x28e Nov 15 09:31:49 localhost kernel: [<786f2b2b>] ? dev_name_hash+0x16/0x48 Nov 15 09:31:49 localhost kernel: [<786f653c>] ? __dev_get_by_name+0x32/0x3d Nov 15 09:31:49 localhost kernel: [<7876e1b4>] wext_handle_ioctl+0x8d/0x18d Nov 15 09:31:49 localhost kernel: [<f824c264>] ? cfg80211_wext_siwfreq+0x0/0xbf [cfg80211] Nov 15 09:31:49 localhost kernel: [<786f7669>] dev_ioctl+0x520/0x53f Nov 15 09:31:49 localhost kernel: [<784593ff>] ? register_lock_class+0x17/0x297 Nov 15 09:31:49 localhost kernel: [<786e6ada>] ? sys_sendto+0xb8/0xc6 Nov 15 09:31:49 localhost kernel: [<7845a0d5>] ? mark_lock+0x1e/0x1eb Nov 15 09:31:49 localhost kernel: [<786e5d1f>] ? sock_ioctl+0x0/0x202 Nov 15 09:31:49 localhost kernel: [<786e5f15>] sock_ioctl+0x1f6/0x202 Nov 15 09:31:49 localhost kernel: [<7845bce2>] ? lock_release_non_nested+0x86/0x1ec Nov 15 09:31:49 localhost kernel: [<786e5d1f>] ? sock_ioctl+0x0/0x202 Nov 15 09:31:49 localhost kernel: [<784cc071>] do_vfs_ioctl+0x56d/0x5c3 Nov 15 09:31:49 localhost kernel: [<784a00be>] ? might_fault+0x4a/0x96 Nov 15 09:31:49 localhost kernel: [<784c130d>] ? fcheck_files+0x9b/0xca Nov 15 09:31:49 localhost kernel: [<784c1369>] ? fget_light+0x2d/0xb0 Nov 15 09:31:49 localhost kernel: [<784cc10a>] sys_ioctl+0x43/0x62 Nov 15 09:31:49 localhost kernel: [<784030dc>] sysenter_do_call+0x12/0x38 Nov 15 09:31:49 localhost kernel: ---[ end trace 5082762405b9644b ]--- -- Ben Greear <greearb@xxxxxxxxxxxxxxx> Candela Technologies Inc http://www.candelatech.com -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
